static void Main(string[] args)
{
Console.WriteLine("Input:");
var board = new Board();
for (var i = 0; i < 9; i++)
{
board.InputNumbers(i, Console.ReadLine());
}
while (!board.Accept)
{
board.SolveOnce();
//board.PutSolution(string.Format("step {0}:", board.Step));
if (board.Step % 10000 == 0)
{
board.PutSolution(string.Format("Step {0}", board.Step));
}
//System.Threading.Thread.Sleep(500);
}
Console.WriteLine();
board.PutSolution("Solution:");
}